.none {
    display: none;
}
  
.block {
    display: block;
}
.page{
    background-color: #F8F9FB;

}

.main-box{
    width: 100%;
    background: #F8F9FB;
    position: relative;
    z-index: 2;
}
.main{
    width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    position : relative;
    .left{
        width: 79%;
    }
    .right{
        width: 20%;
        .right-item{
            width: 20%;
        }
    }

    .right-position{
        position: fixed;
        width: 234px;
    }
}

@media (max-width: 1200px){
    .main{
        width: 100%;
        padding: 0;
        // margin-top: .3rem;
        margin-top: 0;
        .article-item{
            padding: 0.2rem;
        }
        .left{
            width: 100%;
        }
        .right{
            .none();
        }
    }
}
